Finding the Fourth Proportional to 2,087.02, 3,125.67 and 1,221.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,087.02 : 3,125.67 = 1,221.94 : x
2. Step 2: Convert to fraction form
   2,087.02/3,125.67 = 1,221.94/x
3. Step 3: Cross multiply
   2,087.02x = 3,125.67 × 1,221.94
4. Step 4: Simplify right side
   2,087.02x = 3,819,381.20
5. Step 5: Solve for x
   x = 3,819,381.20/2,087.02
6. Step 6: Final answer
   x = 1,830.06